5. the sequence of events in the action potential in a contractile fiber of the heart. (Include the events in the ion channels involved.) (1a) norepinephrine from the Sympathetic Division of the ANS stimulates a given conducting myofiber or contractile cardiac muscle cell to depolarize; or,
Actress | Producer. Patridge was born in Los Angeles, California, to Lynn (Clelland) and Mark Patridge, and is the eldest of four children. She has English, German, Belgian (Walloon and Flemish), Italian, and Polish ancestry.
Warner Bros. Television; Maarten de Boer/Getty Images. Everyone remembers Ashley Johnson as Chrissy Seaver curly-haired cutie on the hit '90s sitcom Growing Pains but now the actress is a sassy, straight-haired 32-year-old who is winning at life and we want to be her bestie.